Chemical combination - Jamb Chemistry Past Questions and Answers

Question 131:

• JAMB 2014

16.55g of lead (ll) trioxonitrate (V) was dissolved in 100g of distilled water at 20oC, calculate the solubility of the solute in moldm-3
[Pb = 207, N = 14, O = 16]

A. 0.05 g
B. 2.00 g
C. 1.00 g
D. 0.50g

Question 132:

• JAMB 2015

A fixed mass of gas a volume of 92cm3 at 3°C. When will be its volume at 18C if the pressure remains constant?

A. 15.3cm³
B. 87.3cm³
C. 2.0cm³
D. 97.0cm³

Question 133:

• JAMB 2015

What volume of 0.5mldm³ H₂SO₄ will exactly neutralize 20cm³ of 0.1moldm³ NaOH Solution?

A. 2.0cm³
B. 5.0cm³
C. 6.8cm³
D. 8.3cm³

Question 134:

• JAMB 2015

What is the volume of energy required to burn 45cm\(^3\) of mixture at S.T.P

A. 135.0cm³
B. 150.0cm³
C. 45.0cm³
D. 90.0cm³

Question 135:

• JAMB 2015

Calculate the relative molecular mass of Limestone CaCO3, (Ca = 40, C =12, O = 16)

A. 56
B. 100
C. 76
D. 90